Elevating-truck.



` J. L. GHESNUTT. BLBVATING TRUCK.

APPLIQATION FILED JULY 1s, 1913.

1,095,267, y Panteamay, 1914.

2 SHEETS-SHEET 1.

J. L. CHESNUTT. BLEVATING TRUCK. APPVLIGATION FILED JULY 18, 191s.

1,095,267', Patented May 5, 1914.

I 2 SHEETS-SHEET 2.

3- l 5'1/ o .23 32 2H W2/2li@ 3 \1'l I 12 lo 'l/ 1g ,zo I?" I7 5w members 12, 14.

JOHN LOUCIEN CHESNUTT, OF KANSAS CITY, MISSOURI.

nLEvATINe-Taiion.

meanest.

Application filed July 18, 1913. Serial No. 780,691. i

Specification of Letters Patent.

Patented May 5, 191.4.

To all whom t may concern: f

Be it known that I, JOHN L. CHnsNUTT,

a citizen of the United vStates of America,

and resident of Kansas City, Jackson county,

Missouri, have invented -a new and useful Elevating-Truek, of vwhich the following is a specification. l Y

The object of this invention is to provide an improved construction for an elevating truck adapted to be moved beneat-h and raise a loaded platform. y

A further object of this invention is to provide improved elevating devices in a lifting truck. Y

A further object of this invention is to provide improved latchihg devices in an elevatino truck. f

A. 2further objectof 4this invention is to' provide improved means. for tripping the latching devices. l i

Myinventio'n consists in the construction, arrangement and" combination of v elements hereinafter set forth, pointed out .in my claims and illustrated by the accompanying drawing, in which- Figure 1 is a plan of the lower frame. Fig. 2 is af plan of the complete truck in lowered position. Fig. 3 is a front eleva tion illustrating the device in p sition for use beneath a platform. Fig. 4C` s a 1oi1gitudinal section on'the line llc-4 of Fi 2, showing the truck in elevated posiion. Figs. 5 and 6 are elevations on an enlarged scale of an inclined plane and roller em- Y ployed in the lifting operation, said views illustrating lowered and raised positions respectively. l

In the construction of the device as shown a bottom frame is formed of side members 10, 11 and end members 12, 13, preferably of angle iron suitably joined at the corners.

The side members 10, 11 preferably are ar.-V

ranged with their horizontal flanges extending inwardly from the bottoms of the vertical iiangesand resting on the horizontal flanges of the end' members 1.2, 13, the vertical flanges of which extend downwardly from the outer margins of said horizontal flanges. The bottom frame also is formed with cross-pieces 14, 15 near to but spaced The bottom frame is supported by rear casters or wheels 1G fixed beneath opposite ends of the members 13, 15, and by front or steering casters 1T, 18 swiveled beneath opposite ends of the Spaeed arms 19, 20 are 42,four 1n number, Figs. 5 and 6, are fixed to lower faces of the fixed to the crosspiece 1a and front member 12,'project forwardly beyond the latter member and a handle 21 is pivoted on a horizontal axis to and between said arms. A to .frame is formed of side members 22, 23 and end members 24, 25, preferably of angle ironsuitably joined at the corners. Theside members 22, 23 preferably .are arranged with their horizontal fianges extending outwardly from the tops of the vert-ical flanges and formingbox like spaces 'with the lower side members 10, 11 when the two frames are in juxtaposition. @blique braces 26, 27 pref erably are fixed to and connect the'side members 22, 2 3 and front 'member 24 and rear portions of vsaid braces 'are connected by cross members 28, 29. Brackets 30, 31, 32, 33 are formed 'on and rise from the horizontal ianges of the side members 10, 11 of the bottom frame at the respective corners thereof, and with the vertical ianges of said members Aform channels or grooves in which rollers 34, 35, 3,6, 37 are mounted foruotation on pins 38, 39, 40, 41. `)inclined planes one of which is shown in side members 22, 23 of the upper frame at the respective corners thereof and said planes incline downwardly and .rearwardly from the horizontal flanges of said ,membersL When the upper frame is in'lowered position as illustrated in Fig. 2, said top frame projects to the rear ofthe lower frame and the inclined planes 42 rest at the rear of the respective rollers 34C, 35,36, 37, as shown in Fig. 5. ,When the upper frame is moved forwardly on the lower' frame t-he 'inclined planes 42 rise on the respective rollers, as shown in Fig. 6 and elevate the upper frame relative` to the lower frame. An eye mcmber 43 is fixed vto and projects forwardly from the central portion of the front member 24 of the top frame. A draft rod 44, is hooked at its rear end and adapted to engage by downward' movement in the eye of the mem'sfer 43, and also is laterally hooked atits opposite end and adapted to be engaged by lateral movement in an eye 45 on the tongue or handle 21. Thus the draft rod is pivoted on a horizontal axis relative to the handle and on a: vertical axis relative to the top frame. When the ldraft rod 44- is engaged with the eye 43 and eye 45 the 'handle 21 may be employed as a lever to pull the top. frame forward on the bottom frame and elevate said top yframe relative to the and projects downwardly from the crossbars 28, 29 of the upper frame and a latching member 49 is pivoted on and depends from said bracket and is formed with'a notch in its lower face .adapted to engage at times with the lug 47. A retractile coil spring 50 is fixed at one end to the rear end of the bracket 48 and at the .other end to therear end of the latching member 49, and

tends to hold the forward or notched end of the latching member down to establish and maintain engagement with the lug 47. The latching member 49 is bent upwardly at its rear end at the rear of the cross-bar 28. A tripping -rod 51 through the front member 24 of the top frame and through the cross-bar 28 thereof and impinges at its rear end the upturned rear portion of the latching member 49. The

forward end of the tripping rod 51 rests.

on the eye member 43 and is formedwith an eye 52 adapted to be engaged by the hooked rear end of the draft rod 44 simultaneously with the engagement thereof with the eye 43. A stop 53 is fixed to the trip' ping rod 51 at the rear of and is adapted to contact with the cross-bar 28 and limit forward movement of said trippin rod, when the rod 44. is disengaged from t e eye 52 thereof and the truck is being moved around.

In practical use the truck is wheeled in lowered position to and beneath a platform such as 54 (see Fig. 3) containing a load to be moved. The platforms 54 may beof any desired construction except that theyy must be open* at the end to admit the truck beneath them. They .may be used for any desired purpose, but I have designed this improvement especially for use in printing establishments wher^ paper stock is stored on such platforms in' thev stock room, and the truck employed to raise and convey the loaded platforms to desired pointsof use.

When the truck is in position the draft rod.

44 is engaged in the eye 52 of the tripping rod and in' the eye 43 of the'to'p frame, thus connecting it tothe tongue 21, and the free end of said tongue is moved forwardly on its pivot, thus applying forward draft to -the top frame, and causing the planes 42 to rise on the respective rollers and elevate the top frame, and with it the loaded platform. The planes 42 preferably are formed with hori- Zontal planes at their rear ends adapted to rest on the rollers inv elevated position.

When the top frame has reached its elevated is slidingly mounted position, the latching member 49, assisted posit-ion until released. The draft rod 44 may then be released from the eyes 43 and 52 and the tongue or handle 21 be employed to move and guide the loaded truck to the desired place of deposit. When it is desired to lower the. platform the handle or tongue 21 is raised to approximately perpendicular position and the draft rod again engaged in the eyes 52 and 43. The eye 43 is formed somewhat longer than the eye 52, so that in rearward movement of the draft rod 44 there is a slight play in the eye 43 and pressure is first applied to the eye 52. This pressure causes a slight rearward movement of the tripping rod 51, which contacts with the upturned rear end of the latching member 49, moves said latching member on its pivot, and releases engagement thereof with the lug47, against the tension of the spring 50. The top frame is thus released from the bottom frame and further rearward movement of the tongue or handle 21 applies a pressure through the eye 43 to said top frame and causes it to move rearwardly and downwardly toward the bottom frame, thus lowering the loaded platform to the ioor and permitting withdrawal of the truck.

Stops 55 are fixed. to side members of the top frame and are adapted to engage at' times the cross-bar 46 of the bot-tom frame andlimit forward movement of said top frame. Stops 56 are fixed to the side members of the top frame and are adapted to en@` ton or more may readily be lifted by one man without undue effort.

I claim as my invention- 1. A lifting truck, comprising a bottom frame provided with supporting wheels, a top frame thereon, a vdraft handle on said bottom frame, means connected with said draft handle for moving the top frame forwardly relative to the bottom frame, means for elevating the top frame relative to the bottom frame in such forward movement a latching member pivoted on the top frame and adapted to engage in the bottom frame, and a tripping rod slidably mounted in said top frame and pivotally connected to and adapted for actuation by said draft handle, said tripping rod adapted to engage and release said latching member.

2. A lifting truck, comprising a bottom frame provided with supporting wheels, a top frame thereon, a draft handle on said bottom frame, a draft rod on said handle the spring 50, engages the lug 47 and lholds said top frame and the load in such engaging an eye on said top frame, a latching member pivoted on said top frame and adapted to engage the bottom frame, a..

.gaged by said draft rod and adapted to engage and release said latching member, the eye of the top frame being elongated relative tothe eye of said tripping rod.

3. A lifting truck, comprising a bottom frame, supporting wheels thereon, a handle pivoted on a horizontal axis on said bottom frame, rollers mounted forrotation on said bottom frame, a top frame formed with inclined planes adapted to Contact with said rollers in forward movement of the top" frame, aI draft rod pivotally and detach* ably connecting said top frame and the handie, a latching lug on the bottom frame, a

latching member pivoted on the top frame and notched for engagement with ,said lug, and tripping means acting Ibetwee'n said. draft rod and the latching member.

4. A lifting truck, comprising a bottom frame, supporting wheels thereon, a handle pivoted on said bottom frame, rollers mounted for rotation on said bottom frame, a top frame formed with inclined planes adapted a to contact with said'rollers in forward moyement of the top frame, an eye on the front of the top frame, an eye on said handle, a draft rod detachably engaging said eyes, av latching lug on the bottom frame, a latching member pivoted on the topv frame and notched for engagement with said lug, said latching member formed with an upturned rear end portion, and a tripping rod slidably mounted and engaged at its forward end by said draft rod, said tripping rod impinging at its rear end the upturned portionof said latchin member.

5. A lifting truc comprising a bottom frame, supporting wheels thereon, a handle pivoted on saidbottom frame, rollers mounted for rotation on said bottom frame, a top frame formedwith inclined planes adapted to contact with said rollers in forward movement of the top frame, an eye on the front of the top frame, an eye on .said handle, a draft rod pivotally and detachably connecting said eyes, a latching lug on thefybottom frame, a latching member pivoted on the top frame and notched to engage said latch ing lug, said latching member formed with an upturned rear end portion, and a tripping rod formed with an eye at its forward end engaged by said draft rod and engaging at its rear end the upturned end of said latchino` member, the eye o f the top -frame being s ightly longer than the eye of saidv tripping rod.`

Signed by me at Kansas City, Missouri, this.29 day of May, 1913.

JOHN LOUGIEN CHESNUTT. Witnesses:

JOHN R. GARRIsoN, SEIBERT W. CHissNiIr'ri` Copies of this patent may bevobtliud for ve cents each, by addressing the Commissioner of Patents.-

, Washington, D. 0. 

